私はhaskellを使ったまったくの初心者で、ささいなプロジェクトを作成していますが、実行する必要がありましたcabal install encoding
。しかし、私がそうしたとき、それは私にこのエラーを与えました:
Configuring encoding-0.6.7.2...
setup.exe: Missing dependency on a foreign library:
* Missing (or bad) header file: system_encoding.h
This problem can usually be solved by installing the system package that
provides this library (you may need the "-dev" version). If the library is
already installed but in a non-standard location then you can use the flags
--extra-include-dirs= and --extra-lib-dirs= to specify where it is.
If the header file does exist, it may contain errors that are caught by the C
compiler at the preprocessing stage. In this case you can re-run configure
with the verbosity flag -v3 to see the error messages.
cabal.exe: Error: some packages failed to install:
encoding-0.6.7.2 failed during the configure step. The exception was:
ExitFailure 1
この問題をどのように修正しますか?